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RE: Newbie question: How often does the bias need to be set/checked on a tube amp?

Yes! By all means re-bias after a rectifier change. The voltage output from the rectifier varies some from tube to tube (even if they are the same brand and number) - which in turn changes the bias on the power tubes.

Please check out the link in my first post, it's full of info you can use.


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  • RE: Newbie question: How often does the bias need to be set/checked on a tube amp? - Jim McShane 14:25:06 08/20/14 (0)

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